Patent US4084045A successfully refreshed from Google Patents.
US4084045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Galvanic cells employing uncompressed particles of FeS as the cathode
Assignee: EIDP Inc
•
Filing: 1976-02-24
•
Granted: 1978-04-11
•
Expires: 1996-02-24
Abstract
Abstract High energy density galvanic cells employing as the cathode, loose FeS particles. A sealed cell including a nonaqueous liquid electrolyte with a conductive salt, a lithium anode and FeS particles about 0.04 to 1 m m in diameter.
Inventors
- 👤 Matthew Roland Kegelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:06
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/58; H01M4/581; H01M50/00; H01M50/50; H01M50/543; H01M50/552; H01M50/559; H01M50/56; H01M6/00; H01M6/14; H01M6/16; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
64 words
In a sealed galvanic cell comprising a container holding a cathode of cathodically active material, an anode, a conductive nonaqueous liquid electrolyte and a separator between the anode and the cathode, the improvement which comprises FeS particles uncompressed except for minor incidental pressure which results from sealing the cell as the cathodically active material, said particles being about 0.04 to 1 mm in diameter.
Claim 2
Dependent Claim
64 words
In a sealed galvanic cell comprising a container holding a cathode of cathodically active material, an anode, a conductive nonaqueous liquid electrolyte and a separator between the anode and the cathode, the improvement which comprises FeS particles uncompressed except for minor incidental pressure which results from sealing the cell as the cathodically active material, said particles being about 0.04 to 1 mm in diameter.
Claim 3
Dependent Claim
22 words
A sealed galvanic cell according to claim 1 wherein the anode is lithium metal and the electrolyte is LiClO 4 in 1,3-dioxolane.
Claim 4
Dependent Claim
11 words
A sealed galvanic cell according to claim 2 containing 3,5-dimethylisoxazole stabilizer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-10 | 1981-10-10 | 1982-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-10 | 1985-10-10 | 1986-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-10 | 1989-10-10 | 1990-04-11 | $7700.00 | Window Closed / Lapsed |